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### Transcript of Kungfu math p4 slide18 (money)pdf

• 1. Measurement MoneyWhat will we learn today? multiplication and division of money in decimal notation solving word problems involving the 4 operations of money in decimal notation
• 2. There are differentdenominations (value) ofcoins and notes we usein Singapore.
• 3. How do we write in cents and dollars 10 cents \$0.10 20 cents \$0.20 30 cents \$0.30 40 cents \$0.40 50 cents \$0.50 60 cents \$0.60 70 cents \$0.70 80 cents \$0.80 90 cents \$0.90 1 dollar \$1
• 4. Try this out!1. Tommy bought a pair of pants for \$25 and two shirts for \$18 each. He gave the cashier two fifty-dollar notes. How much change did she receive from the cashier?
• 5. Try this out!1. Tommy bought a pair of pants for \$25 and two shirts for \$18 each. He gave the cashier two fifty-dollar notes. How much change did she receive from the cashier?
• 6. Try this out!1. Tommy bought a pair of pants for \$25 and two shirts for \$18 each. He gave the cashier two fifty-dollar notes. How much change did she receive from the cashier?Step 1: 2 x \$18 = \$36 (2 shirts)
• 7. Try this out!1. Tommy bought a pair of pants for \$25 and two shirts for \$18 each. He gave the cashier two fifty-dollar notes. How much change did she receive from the cashier?Step 1: 2 x \$18 = \$36 (2 shirts)Step 2: \$36 + \$25 = \$61 (shirts and pants)
• 8. Try this out!1. Tommy bought a pair of pants for \$25 and two shirts for \$18 each. He gave the cashier two fifty-dollar notes. How much change did she receive from the cashier?Step 1: 2 x \$18 = \$36 (2 shirts)Step 2: \$36 + \$25 = \$61 (shirts and pants)Step 3: 2 x \$50 = \$100
• 9. Try this out!1. Tommy bought a pair of pants for \$25 and two shirts for \$18 each. He gave the cashier two fifty-dollar notes. How much change did she receive from the cashier?Step 1: 2 x \$18 = \$36 (2 shirts)Step 2: \$36 + \$25 = \$61 (shirts and pants)Step 3: 2 x \$50 = \$100Step 4: \$100 - \$61 = \$39She received \$39 from the cashier.
• 10. Try this out!2. Kate bought a blouse and 2 skirts. Shegave the cashier \$100 and got back \$39.25as change. A skirt cost twice as much as ablouse. How much did a skirt cost?(1) \$12.15(2) \$20.25(3) \$24.30(4) \$40.50
• 11. Solution2. Kate bought a blouse and 2 skirts. Shegave the cashier \$100 and got back \$39.25as change. A skirt cost twice as much as ablouse. How much did a skirt cost?Step 1: \$100- \$39.25 = \$60.75
• 12. Solution2. Kate bought a blouse and 2 skirts. Shegave the cashier \$100 and got back \$39.25as change. A skirt cost twice as much as ablouse. How much did a skirt cost?Step 2: \$60.75 5 = \$12.15Since a skirt cost twice as much as a blouse,there are 5 units in total.
• 13. Solution2. Kate bought a blouse and 2 skirts. Shegave the cashier \$100 and got back \$39.25as change. A skirt cost twice as much as ablouse. How much did a skirt cost?Step 3: \$12.15 x 2 = \$24.30Since a skirt cost twice as much as a blouse,we have to multiply by 2, to get the cost ofthe skirt.
• 14. Solution2. Kate bought a blouse and 2 skirts. Shegave the cashier \$100 and got back \$39.25as change. A skirt cost twice as much as ablouse. How much did a skirt cost?Step 3: \$12.15 x 2 = \$24.30Answer: \$24.30
• 15. Are you ready to try out the questions?
• 16. Visit kungfumath.sg today!